Scs-Cherokee Sandy Site-15 Reservoir Report
Last Updated: December 9, 2025
Located in Garvin County, Oklahoma, the SCS-Cherokee Sandy Site-15 dam is a critical infrastructure designed by the USDA NRCS to manage flood risk along the TR-Cherokee Sandy Creek.
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Summary
Completed in 1962, this earth dam stands at a height of 30 feet with a hydraulic height of 27 feet, providing a storage capacity of 137 acre-feet for floodwaters. With a controlled spillway and low hazard potential, the dam serves as a vital resource for flood risk reduction in the region.
Managed by the Oklahoma Water Resources Board and regulated by the state, SCS-Cherokee Sandy Site-15 is inspected every five years to ensure its structural integrity and effectiveness in flood control. Despite its age, the dam has not been rated for its condition, indicating the need for further assessment. The presence of a single valve outlet gate and the absence of associated structures highlight the simplicity of the design, emphasizing functionality and practicality in managing water resources in the area.
In the event of emergencies, such as high discharge or potential breaches, the dam is equipped to handle such situations with emergency action plans and risk management measures in place. With a very high risk assessment rating, stakeholders and officials are continuously working towards improving the dam's resilience and capacity to withstand extreme weather events, making it a key asset for water resource and climate enthusiasts invested in sustainable infrastructure development.
Year Completed |
1962 |
Dam Length |
1020 |
Dam Height |
30 |
River Or Stream |
TR-CHERKEE SANDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
27 |
Nid Storage |
137 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Washita River Near Pauls Valley
|
335cfs |
Rock Creek At Sulphur
|
8cfs |
Walnut Creek At Purcell
|
29cfs |
Canadian River At Purcell
|
201cfs |
Pennington Creek Near Reagan
|
7cfs |
North Criner Creek Near Criner
|
1cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Scs-Cherokee Sandy Site-15